Novel fucolipids of human adenocarcinoma: disialosyl Lea antigen (III4FucIII6NeuAcIV3NeuAcLc4) of human colonic adenocarcinoma and the monoclonal antibody (FH7) defining this structure

A new fucoganglioside, disialosyl Lea, has been found in the disialoganglioside fraction of human colonic adenocarcinoma. The ganglioside has been isolated from four other disialogangliosides by high-performance liquid chromatography followed by preparative high-performance thin-layer chromatography...

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Bibliographic Details
Published in:The Journal of biological chemistry 1986-04, Vol.261 (12), p.5487-5495
Main Authors: Nudelman, E, Fukushi, Y, Levery, S B, Higuchi, T, Hakomori, S
Format: Article
Language:English
Subjects:
Adenocarcinoma - analysis
Antibodies, Monoclonal
Antigens, Neoplasm - analysis
Biological and medical sciences
Carbohydrate Sequence
Chromatography, High Pressure Liquid
Chromatography, Thin Layer
Colonic Neoplasms - analysis
Cross Reactions
Gangliosides - analysis
Gangliosides - immunology
Gas Chromatography-Mass Spectrometry
Gastroenterology. Liver. Pancreas. Abdomen
Glycolipids - analysis
Humans
Medical sciences
Methylation
Sialic Acids - analysis
Stomach. Duodenum. Small intestine. Colon. Rectum. Anus
Tumors
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Summary:A new fucoganglioside, disialosyl Lea, has been found in the disialoganglioside fraction of human colonic adenocarcinoma. The ganglioside has been isolated from four other disialogangliosides by high-performance liquid chromatography followed by preparative high-performance thin-layer chromatography. The structure of the antigen was characterized by its conversion to lactofucopentaosyl(II)ceramide (Lea-active ceramide pentasaccharide), methylation analysis, and high-mass range electron-impact as well as field-desorption mass spectrometry of the permethylated derivative, as shown below: (Formula; see text) Specific removal of alpha 2—-3-linked sialosyl residue by influenza virus A2 sialidase, or preferential hydrolysis of the same residue by Clostridium perfringens sialidase in the absence of detergent, resulted in the formation of an intermediate product, monosialosyl LeaII (III4FucIII6NeuAcLc4), which reacted with anti-Lea antibody and with monoclonal antibody FH7 and may have a sialic acid linked at the 6 position of GlcNAc. The IgG3 monoclonal antibody FH7 was established, which reacts specifically with disialosyl Lea and monosialosyl LeaII as above, but does not react with disialosyllactotetraosylceramide (IV3NeuAcIII6Neu-AcLc4), monosialosyl LeaI (IV3NeuAcIII4FucLc4), and other mono- and disialogangliosides isolated from the same cancer tissue. The antibody FH7 may be useful in the detection of human cancer.
ISSN:0021-9258
1083-351X
DOI:10.1016/S0021-9258(19)57242-8